Tin Cure Silicone Rubber RTV2 20 Shore A Low Shrinkage Liquid for Precast Decorative Concrete Molds
Price:
Negotiable
MOQ:
1 Kilogram
Delivery Time:
5-7 Days
Brand:
Hanast
Product Description
RTV2 Tin Cure (Condensation Cure) Liquid Silicone Rubber — HN-620 A/B
HN-620 A/B is a two-component tin cure (condensation cure) liquid silicone rubber that vulcanizes at room temperature. Mixed at a 100:2 ratio, it delivers excellent fluidity, low linear shrinkage (≤0.2%) and high tear strength — ideal for reproducing fine details in precast concrete, decorative concrete, architectural casting and industrial mold making.
Key Features
- Condensation cure (tin cure) RTV-2 system, 100:2 mix ratio, room temperature vulcanizing
- Low linear shrinkage (≤0.2%) for precise, dimensionally stable molds
- High tear strength (19.8–24.3 kN/m) — withstands repeated demolding cycles
- High elongation (600–720%) and good fluidity for easy pouring / brushing
- Excellent reproduction of fine surface detail for precast & decorative concrete molds
- Transparent / translucent, environmentally friendly; ROHS & SGS certified
Technical Specifications
| Property | Value |
|---|---|
| Model | HN-620 A/B / HN-630 A/B |
| Mixing Ratio (A:B) | 100:2 |
| Viscosity | 18,000–25,000 cps |
| Hardness | 20 / 30 Shore A |
| Tensile Strength | 3.1–4.1 MPa |
| Tear Strength | 19.8–24.3 kN/m |
| Elongation | 600–720% |
| Linear Shrinkage | ≤0.2% |
| Color | Transparent / White |
| Operating Time | 30–40 minutes |
| Curing Time | 3–4 hours at room temperature |
Applications
- Precast concrete & decorative concrete molds
- Architectural casting and construction molds
- Foundry patterns, prototype and industrial mold making
- Gypsum, plaster and resin crafts; soap and food molds
Trade Information
- Place of Origin: Guangdong, China
- Certification: ROHS, SGS
- Minimum Order Quantity: 1 kilogram
- Packaging: 25KG / iron drum
- Delivery Time: 5–7 days
- Payment Terms: T/T
- Price: Negotiable — contact us for wholesale and OEM quotations.
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Company
Shenzhen Hanast New Material co.,LTD
Location
Units 1210-1211, Block B, Building 6, Hengda Fashion Valley, Dalang Street, Longhua District, Shenzhen, Guangdong Province, China
Contact Person
Candy